Growing in dirt, ocean forest fox farm. Just transplanted 2 weeks ago into 7 gal pots. using 600metal halide 22/2..which I know is kinda alot of light..most of plants are great..on some though there are a few huge leaves that have this issue..then some don't have any leaves like this. They are curled and brittle and a point broke off even when watering on one leaf. Just gave some humeric acid to lower Ph, hoping that helps..but not totally sure what the problem is..any advice please Marybell PS the small layer of gravel on top is an awesome solution to a huge gnat problem I had in the past. Tried ALL the solutions sold on the market, and this is WHAT WORKS!